/* roulang page: index */
:root {
    --primary: #7b5cff;
    --primary-rgb: 123, 92, 255;
    --accent: #00e0ff;
    --accent-rgb: 0, 224, 255;
    --pink: #ff5c8a;
    --bg: #0a0e1a;
    --bg-2: #0d1222;
    --card-bg: rgba(18, 24, 40, 0.82);
    --border: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(123, 92, 255, 0.25);
    --text: #eae9ff;
    --text-light: #f8f7ff;
    --text-muted: #98a0c2;
    --radius: 18px;
    --radius-sm: 10px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 30px rgba(123, 92, 255, 0.12);
    --transition: all 0.3s ease;
    --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { border: none; background: none; }
i { font-style: normal; }

/* ===== Container ===== */
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== Navbar ===== */
.navbar-custom {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1050;
    background: rgba(6, 9, 18, 0.88);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border-glow);
    transition: var(--transition);
}
.navbar-custom .container { padding-top: 14px; padding-bottom: 14px; }
.navbar-custom .navbar-brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}
.navbar-custom .brand-icon {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
    box-shadow: 0 0 18px rgba(123, 92, 255, 0.4);
}
.navbar-custom .nav-link {
    color: var(--text-muted);
    font-weight: 500;
    padding: 8px 18px !important;
    border-radius: 10px;
    transition: var(--transition);
    font-size: 0.96rem;
}
.navbar-custom .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}
.navbar-custom .nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, rgba(123, 92, 255, 0.25), rgba(0, 224, 255, 0.15));
    box-shadow: inset 0 0 0 1px var(--border-glow);
}
.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 5px 10px;
    border-radius: 8px;
}
.navbar-toggler:focus { box-shadow: 0 0 0 0.2rem rgba(123, 92, 255, 0.25); }
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.4em; height: 1.4em;
}
.btn-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), #5b3fe4);
    color: #fff !important;
    border-radius: 12px;
    padding: 10px 24px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(123, 92, 255, 0.3);
    border: none;
}
.btn-brand:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(123, 92, 255, 0.45);
    color: #fff;
}
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), #1ab3ff);
    color: #0a0e1a !important;
    border-radius: 12px;
    padding: 13px 30px;
    font-weight: 700;
    font-size: 0.98rem;
    transition: var(--transition);
    box-shadow: 0 4px 24px rgba(0, 224, 255, 0.25);
    border: none;
}
.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(0, 224, 255, 0.4);
    color: #0a0e1a;
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    padding: 13px 30px;
    font-weight: 600;
    font-size: 0.98rem;
    transition: var(--transition);
}
.btn-outline:hover {
    border-color: var(--accent);
    background: rgba(0, 224, 255, 0.06);
    transform: translateY(-2px);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 94vh;
    display: flex;
    align-items: center;
    padding-top: 150px;
    padding-bottom: 110px;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}
.hero-bg::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.7) 0%, rgba(10, 14, 26, 0.82) 60%, var(--bg) 100%);
}
.hero-bg::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 72% 30%, rgba(123, 92, 255, 0.18), transparent 60%);
    z-index: 1;
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 20px;
    border-radius: 50px;
    background: rgba(123, 92, 255, 0.12);
    border: 1px solid rgba(123, 92, 255, 0.3);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 26px;
}
.hero h1 {
    font-size: clamp(2.6rem, 6.5vw, 4.6rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.12;
    margin-bottom: 18px;
    letter-spacing: -1px;
}
.hero h1 .grad {
    background: linear-gradient(135deg, var(--accent), var(--primary), var(--pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero .lead {
    font-size: clamp(1rem, 1.9vw, 1.3rem);
    color: var(--text-muted);
    max-width: 640px;
    margin-bottom: 34px;
    line-height: 1.7;
}
.countdown-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.countdown-label {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 4px;
}
.countdown-label i { color: var(--accent); font-size: 1.1rem; }
.countdown-box {
    background: rgba(18, 24, 40, 0.85);
    border: 1px solid var(--border-glow);
    border-radius: 14px;
    padding: 10px 18px;
    text-align: center;
    min-width: 78px;
    box-shadow: var(--shadow-glow);
    backdrop-filter: blur(6px);
}
.countdown-box .countdown-num {
    font-size: 1.9rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}
.countdown-box .countdown-unit {
    font-size: 0.74rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.countdown-sep {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
    margin-top: -12px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Stats ===== */
.stats-wrapper {
    margin-top: -70px;
    position: relative;
    z-index: 5;
    padding-bottom: 90px;
}
.stat-card {
    background: var(--card-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}
.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}
.stat-num {
    font-size: 2.4rem;
    font-weight: 800;
    color: #fff;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}
.stat-num .unit {
    font-size: 1.2rem;
    color: var(--accent);
    margin-left: 2px;
}
.stat-label {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ===== Section ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-2); }
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}
.section-header .tag {
    display: inline-block;
    padding: 5px 18px;
    border-radius: 50px;
    background: rgba(123, 92, 255, 0.1);
    border: 1px solid rgba(123, 92, 255, 0.22);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.section-header h2 {
    font-size: clamp(1.9rem, 3.4vw, 2.7rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}
.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
}
.divider {
    width: 70px; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 4px;
    margin: 16px auto 0;
}

/* ===== Feature Cards ===== */
.feature-card {
    height: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
    opacity: 0.6;
}
.feature-card:hover {
    transform: translateY(-7px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}
.feature-icon {
    width: 58px; height: 58px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(123, 92, 255, 0.22), rgba(0, 224, 255, 0.16));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 22px;
    border: 1px solid var(--border-glow);
}
.feature-card h3 {
    font-size: 1.18rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
}
.feature-card p {
    color: var(--text-muted);
    font-size: 0.93rem;
    margin-bottom: 0;
    line-height: 1.7;
}

/* ===== Category ===== */
.category-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    height: 340px;
    display: block;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.category-card img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.category-card .cat-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.05) 0%, rgba(10, 14, 26, 0.75) 50%, rgba(10, 14, 26, 0.92) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
}
.category-card:hover img { transform: scale(1.07); }
.category-card:hover {
    border-color: var(--border-glow);
    box-shadow: 0 12px 44px rgba(0, 0, 0, 0.5), var(--shadow-glow);
}
.category-card h3 {
    color: #fff;
    font-weight: 700;
    font-size: 1.35rem;
    margin-bottom: 6px;
}
.category-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 10px;
    line-height: 1.6;
}
.category-card .cat-link {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}
.category-card:hover .cat-link { gap: 12px; }

/* ===== Post Cards ===== */
.post-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.post-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}
.post-cover {
    display: block;
    height: 210px;
    overflow: hidden;
    position: relative;
}
.post-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.55s ease;
}
.post-card:hover .post-cover img { transform: scale(1.06); }
.post-body { padding: 26px; flex: 1; display: flex; flex-direction: column; }
.post-cat {
    display: inline-flex;
    align-self: flex-start;
    font-size: 0.75rem;
    color: var(--accent);
    background: rgba(0, 224, 255, 0.08);
    border: 1px solid rgba(0, 224, 255, 0.22);
    padding: 3px 14px;
    border-radius: 50px;
    margin-bottom: 13px;
    letter-spacing: 0.5px;
}
.post-title { font-size: 1.1rem; margin-bottom: 10px; line-height: 1.45; }
.post-title a { color: #fff; font-weight: 600; transition: color 0.3s ease; }
.post-title a:hover { color: var(--accent); }
.post-excerpt {
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-bottom: 18px;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.post-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.82rem;
}
.post-meta i { color: var(--primary); font-size: 0.85rem; }
.empty-tip {
    text-align: center;
    padding: 60px 30px;
    background: var(--card-bg);
    border: 1px dashed var(--border-glow);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 1rem;
}
.empty-tip i {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 14px;
    display: block;
}

/* ===== Journey ===== */
.journey-section {
    background: var(--bg-2);
    position: relative;
    overflow: hidden;
}
.journey-section::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse, rgba(123, 92, 255, 0.08), transparent 70%);
    pointer-events: none;
}
.journey-step {
    text-align: center;
    padding: 26px 20px;
    position: relative;
    height: 100%;
}
.step-num {
    width: 52px; height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 18px;
    box-shadow: 0 0 24px rgba(123, 92, 255, 0.35);
}
.journey-step h4 {
    color: #fff;
    font-weight: 600;
    font-size: 1.08rem;
    margin-bottom: 10px;
}
.journey-step p {
    color: var(--text-muted);
    font-size: 0.88rem;
    max-width: 240px;
    margin: 0 auto;
    line-height: 1.65;
}
.journey-arrow {
    position: absolute;
    top: 50%;
    right: -14px;
    color: var(--primary);
    font-size: 1.3rem;
    transform: translateY(-50%);
    z-index: 2;
    background: var(--bg-2);
    border-radius: 50%;
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== FAQ ===== */
.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-glow); }
.faq-q {
    padding: 22px 26px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: #fff;
    font-size: 1rem;
    gap: 16px;
    transition: background 0.2s ease;
}
.faq-q:hover { background: rgba(255, 255, 255, 0.02); }
.faq-q .icon {
    color: var(--accent);
    font-size: 1.25rem;
    transition: transform 0.35s ease;
    flex-shrink: 0;
}
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a {
    padding: 0 26px 22px;
    color: var(--text-muted);
    font-size: 0.93rem;
    display: none;
    line-height: 1.75;
}
.faq-item.open .faq-a { display: block; }

/* ===== CTA ===== */
.cta-wrapper { padding: 30px 0 100px; }
.cta-section {
    position: relative;
    background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    border-radius: 26px;
    padding: 72px 50px;
    overflow: hidden;
    text-align: center;
    border: 1px solid var(--border-glow);
}
.cta-section::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(10, 14, 26, 0.88), rgba(50, 30, 100, 0.65), rgba(10, 14, 26, 0.88));
    backdrop-filter: blur(2px);
}
.cta-content { position: relative; z-index: 1; }
.cta-content h2 {
    color: #fff;
    font-size: clamp(1.7rem, 3.2vw, 2.4rem);
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}
.cta-content p {
    color: rgba(255, 255, 255, 0.78);
    max-width: 620px;
    margin: 0 auto 34px;
    font-size: 1.02rem;
    line-height: 1.7;
}
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
    background: #060a14;
    border-top: 1px solid var(--border-glow);
    padding: 56px 0 28px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.28rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand .brand-icon {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: #fff;
}
.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 300px;
    margin-bottom: 18px;
    line-height: 1.6;
}
.footer-title {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    font-weight: 600;
}
.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: var(--text-muted);
    font-size: 0.92rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a i { font-size: 0.8rem; color: var(--primary); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 22px;
    margin-top: 42px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero { min-height: 86vh; padding-top: 130px; padding-bottom: 90px; }
    .stats-wrapper { margin-top: -50px; }
    .journey-arrow { display: none; }
}
@media (max-width: 768px) {
    .navbar-custom .container { padding-top: 10px; padding-bottom: 10px; }
    .navbar-custom .navbar-collapse {
        background: rgba(8, 11, 20, 0.97);
        border-radius: 14px;
        padding: 18px;
        margin-top: 12px;
        border: 1px solid var(--border-glow);
    }
    .navbar-custom .nav-link { padding: 10px 14px !important; }
    .navbar-custom .btn-brand { margin-top: 12px; width: 100%; justify-content: center; }
    .hero { min-height: auto; padding-top: 120px; padding-bottom: 80px; text-align: center; }
    .hero .lead { margin-left: auto; margin-right: auto; }
    .hero-badge { margin-left: auto; margin-right: auto; }
    .countdown-wrap { justify-content: center; }
    .hero-btns { justify-content: center; }
    .countdown-box { min-width: 66px; padding: 8px 12px; }
    .countdown-box .countdown-num { font-size: 1.5rem; }
    .section { padding: 70px 0; }
    .section-header { margin-bottom: 40px; }
    .stats-wrapper { margin-top: 0; padding-bottom: 60px; }
    .stat-card { margin-bottom: 16px; }
    .cta-section { padding: 50px 28px; }
}
@media (max-width: 520px) {
    .container { padding-left: 18px; padding-right: 18px; }
    .navbar-custom .navbar-brand { font-size: 1.2rem; }
    .hero h1 { font-size: 2.2rem; }
    .hero .lead { font-size: 1rem; }
    .countdown-wrap { gap: 8px; }
    .countdown-label { width: 100%; justify-content: center; margin-bottom: 4px; }
    .countdown-box { min-width: 56px; padding: 7px 10px; }
    .countdown-box .countdown-num { font-size: 1.2rem; }
    .countdown-box .countdown-unit { font-size: 0.65rem; }
    .btn-accent, .btn-outline { padding: 11px 22px; font-size: 0.9rem; width: 100%; justify-content: center; }
    .feature-card { padding: 26px 22px; }
    .category-card { height: 280px; }
    .post-body { padding: 20px; }
    .cta-section { padding: 40px 20px; }
    .cta-btns .btn-accent, .cta-btns .btn-outline { width: 100%; }
    .footer-links { margin-bottom: 24px; }
}

/* roulang page: category1 */
:root {
            --bg-dark: #0a0e1a;
            --bg-deep: #070b14;
            --bg-card: #121a2e;
            --bg-card-hover: #182240;
            --bg-nav: rgba(10, 14, 26, 0.92);
            --primary: #6ea8ff;
            --primary-rgb: 110, 168, 255;
            --secondary: #ffd166;
            --accent: #64ffda;
            --accent-rgb: 100, 255, 218;
            --text-main: #e6edf7;
            --text-muted: #8b9bb4;
            --text-soft: #b6c4d8;
            --border: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(100, 255, 218, 0.35);
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 18px 50px rgba(0, 0, 0, 0.55);
            --transition: all 0.3s ease;
            --font-body: "PingFang SC", "HarmonicOS Sans", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ---------- 导航 ---------- */
        .navbar-custom {
            background: var(--bg-nav);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            transition: var(--transition);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }

        .navbar-custom .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(110, 168, 255, 0.2), rgba(100, 255, 218, 0.15));
            border: 1px solid var(--border-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1rem;
            box-shadow: 0 0 18px rgba(100, 255, 218, 0.15);
        }

        .navbar-custom .navbar-toggler {
            border-color: var(--border);
            color: var(--text-main);
            border-radius: 10px;
            padding: 6px 12px;
        }

        .navbar-custom .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--border-glow);
        }

        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: 10px;
            margin: 2px 4px;
            position: relative;
            transition: var(--transition);
        }

        .navbar-custom .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.05);
        }

        .navbar-custom .nav-link.active {
            color: var(--accent);
            background: rgba(100, 255, 218, 0.08);
            text-shadow: 0 0 12px rgba(100, 255, 218, 0.4);
        }

        .navbar-custom .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px var(--accent);
        }

        .btn-brand {
            background: linear-gradient(135deg, var(--accent), #4fd8b8);
            color: #06120f;
            border: none;
            border-radius: 12px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(100, 255, 218, 0.25);
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: linear-gradient(135deg, #7fffe6, var(--accent));
            color: #06120f;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(100, 255, 218, 0.35);
        }

        .btn-brand:focus,
        .btn-brand:focus-visible {
            outline: 3px solid rgba(100, 255, 218, 0.4);
            outline-offset: 2px;
        }

        /* ---------- 分类页 Banner ---------- */
        .category-banner {
            position: relative;
            padding: 140px 0 100px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat fixed;
            overflow: hidden;
        }

        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 20, 0.75) 0%, rgba(7, 11, 20, 0.85) 60%, var(--bg-deep) 100%);
        }

        .category-banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 20%, rgba(100, 255, 218, 0.08) 0%, transparent 50%);
        }

        .category-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 30px;
            background: rgba(100, 255, 218, 0.1);
            border: 1px solid var(--border-glow);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            margin-bottom: 20px;
        }

        .category-banner h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #ffffff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-banner .lead {
            color: var(--text-soft);
            font-size: 1.1rem;
            max-width: 640px;
            margin-bottom: 28px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 10px;
        }

        .banner-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 6px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
        }

        .banner-meta-item i {
            color: var(--accent);
        }

        /* ---------- 板块通用 ---------- */
        .section-pad {
            padding: 90px 0;
        }

        .section-head {
            margin-bottom: 50px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(100, 255, 218, 0.08);
            border: 1px solid var(--border-glow);
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--text-muted);
            max-width: 640px;
            font-size: 0.98rem;
        }

        /* ---------- 主题横向卡片 ---------- */
        .theme-scroll-section {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 90px 0;
            position: relative;
        }

        .theme-scroll-section::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
        }

        .theme-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding: 10px 4px 24px;
            scrollbar-width: thin;
            scrollbar-color: var(--accent) rgba(255, 255, 255, 0.06);
        }

        .theme-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .theme-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.04);
            border-radius: 10px;
        }

        .theme-scroll::-webkit-scrollbar-thumb {
            background: var(--accent);
            border-radius: 10px;
            box-shadow: 0 0 12px var(--accent);
        }

        .theme-card {
            min-width: 280px;
            max-width: 280px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .theme-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .theme-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-hover);
        }

        .theme-card:hover::before {
            opacity: 1;
        }

        .theme-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(110, 168, 255, 0.15), rgba(100, 255, 218, 0.1));
            border: 1px solid rgba(100, 255, 218, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 18px;
        }

        .theme-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .theme-card p {
            color: var(--text-muted);
            font-size: 0.87rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .theme-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tag {
            font-size: 0.72rem;
            padding: 4px 10px;
            border-radius: 30px;
            background: rgba(110, 168, 255, 0.1);
            border: 1px solid rgba(110, 168, 255, 0.25);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .tag.tag-accent {
            background: rgba(100, 255, 218, 0.08);
            border-color: var(--border-glow);
            color: var(--accent);
        }

        /* ---------- 观星流程 ---------- */
        .journey-section {
            background: var(--bg-deep);
        }

        .journey-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step-counter;
        }

        .step-item {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            transition: var(--transition);
            overflow: hidden;
        }

        .step-item::before {
            counter-increment: step-counter;
            content: "0" counter(step-counter);
            position: absolute;
            top: 8px;
            right: 16px;
            font-size: 3.5rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.04);
            line-height: 1;
            transition: var(--transition);
        }

        .step-item:hover::before {
            color: rgba(100, 255, 218, 0.08);
        }

        .step-item:hover {
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .step-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(110, 168, 255, 0.1);
            border: 1px solid rgba(110, 168, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 18px;
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }

        /* ---------- 观测地点卡片 ---------- */
        .location-section {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .location-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .location-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }

        .location-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-hover);
        }

        .location-card .loc-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .location-card .loc-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(18, 26, 46, 0.95) 100%);
        }

        .location-card .loc-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(7, 11, 20, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-glow);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 30px;
        }

        .location-card .loc-body {
            padding: 24px;
            position: relative;
            margin-top: -60px;
            z-index: 2;
        }

        .location-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .location-card .loc-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }

        .location-card p {
            color: var(--text-muted);
            font-size: 0.86rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ---------- 器材排行 ---------- */
        .gear-section {
            background: var(--bg-deep);
        }

        .gear-table {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .gear-row {
            display: grid;
            grid-template-columns: 60px 1fr 1.2fr 0.8fr;
            gap: 16px;
            align-items: center;
            padding: 20px 28px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .gear-row:last-child {
            border-bottom: none;
        }

        .gear-row:hover {
            background: rgba(100, 255, 218, 0.03);
        }

        .gear-rank {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--secondary);
            text-align: center;
            background: rgba(255, 209, 102, 0.08);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .gear-title h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .gear-title .gear-cat {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .gear-desc {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .gear-score {
            text-align: right;
        }

        .gear-score .score {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 700;
            font-size: 0.95rem;
            background: rgba(100, 255, 218, 0.08);
            padding: 6px 14px;
            border-radius: 30px;
            border: 1px solid var(--border-glow);
        }

        .gear-score .score i {
            font-size: 0.8rem;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(100, 255, 218, 0.3);
        }

        .faq-item summary {
            padding: 22px 28px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary i {
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary {
            color: var(--accent);
            background: rgba(100, 255, 218, 0.04);
        }

        .faq-item[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item .faq-body {
            padding: 0 28px 24px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 11, 20, 0.82), rgba(10, 14, 26, 0.7));
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-soft);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
        }

        .btn-cta {
            background: linear-gradient(135deg, var(--secondary), #ffb84d);
            color: #1a1206;
            border: none;
            border-radius: 14px;
            padding: 14px 36px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(255, 209, 102, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255, 209, 102, 0.35);
            color: #1a1206;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 70px 0 0;
        }

        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .site-footer .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(110, 168, 255, 0.2), rgba(100, 255, 218, 0.15));
            border: 1px solid var(--border-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 0.9rem;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 280px;
        }

        .footer-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.05em;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--accent);
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 0.6rem;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-links a:hover i {
            transform: translateX(3px);
        }

        .footer-bottom {
            margin-top: 50px;
            padding: 24px 0;
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.82rem;
            margin: 0;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 991px) {
            .navbar-custom .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .navbar-custom .navbar-collapse {
                background: var(--bg-dark);
                border-radius: var(--radius);
                margin-top: 14px;
                padding: 16px;
                border: 1px solid var(--border);
                box-shadow: var(--shadow);
            }

            .navbar-custom .nav-link {
                padding: 12px 16px !important;
                border-radius: 10px;
            }

            .navbar-custom .nav-link.active::after {
                display: none;
            }

            .btn-brand {
                margin: 12px 4px 0;
                width: 100%;
                justify-content: center;
            }

            .category-banner {
                padding: 120px 0 80px;
                background-attachment: scroll;
            }

            .theme-card {
                min-width: 250px;
                max-width: 250px;
            }

            .journey-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .location-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gear-row {
                grid-template-columns: 50px 1fr 1.4fr;
            }

            .gear-score {
                grid-column: 1 / -1;
                text-align: left;
            }

            .cta-section {
                background-attachment: scroll;
            }
        }

        @media (max-width: 767px) {
            .section-pad {
                padding: 70px 0;
            }

            .category-banner {
                padding: 100px 0 70px;
                background-attachment: scroll;
            }

            .category-banner h1 {
                font-size: 1.7rem;
            }

            .journey-steps {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .location-grid {
                grid-template-columns: 1fr;
            }

            .gear-row {
                grid-template-columns: 50px 1fr;
                padding: 18px;
            }

            .gear-desc {
                grid-column: 1 / -1;
                padding-left: 0;
                border-top: 1px solid var(--border);
                padding-top: 12px;
                margin-top: 4px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .banner-meta {
                gap: 10px;
            }

            .banner-meta-item {
                padding: 4px 12px;
                font-size: 0.78rem;
            }

            .theme-card {
                min-width: 220px;
                max-width: 220px;
                padding: 20px;
            }

            .gear-table {
                border-radius: 12px;
            }

            .gear-row {
                grid-template-columns: 40px 1fr;
                gap: 12px;
                padding: 16px;
            }

            .gear-rank {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
                border-radius: 10px;
            }

            .faq-item summary {
                padding: 18px 20px;
                font-size: 0.92rem;
            }

            .faq-item .faq-body {
                padding: 0 20px 20px;
            }
        }

/* roulang page: article */
:root {
    --primary: #7b6cff;
    --primary-dark: #5b4be0;
    --accent: #2de0ff;
    --accent-pink: #f472b6;
    --bg: #0b0f1a;
    --bg-soft: #111827;
    --surface: #151d30;
    --surface-2: #1c2740;
    --border: rgba(255, 255, 255, 0.09);
    --text: #eef1f8;
    --text-muted: #9aa6bd;
    --radius: 20px;
    --radius-sm: 12px;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
    --shadow-hover: 0 25px 70px rgba(123, 108, 255, 0.18);
    --shadow-glow: 0 10px 40px rgba(123, 108, 255, 0.25);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #ffffff;
}

img {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    font-family: inherit;
    font-weight: 700;
    line-height: 1.25;
    color: #ffffff;
}

::selection {
    background: rgba(123, 108, 255, 0.4);
    color: #ffffff;
}

.container {
    position: relative;
    z-index: 2;
}

.navbar-custom {
    background: rgba(11, 15, 26, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
    transition: var(--transition);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

.navbar-custom .navbar-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.navbar-custom .brand-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    color: #ffffff;
    font-size: 16px;
    box-shadow: 0 6px 20px rgba(123, 108, 255, 0.4);
}

.navbar-custom .navbar-nav .nav-link {
    color: var(--text-muted);
    font-weight: 600;
    padding: 10px 18px;
    margin: 0 4px;
    border-radius: 10px;
    font-size: 0.98rem;
    position: relative;
    transition: var(--transition);
}

.navbar-custom .navbar-nav .nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.navbar-custom .navbar-nav .nav-link.active {
    color: #ffffff;
    background: rgba(123, 108, 255, 0.16);
    box-shadow: inset 0 0 0 1px rgba(123, 108, 255, 0.35), 0 0 20px rgba(123, 108, 255, 0.18);
}

.navbar-custom .navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    box-shadow: 0 0 14px rgba(45, 224, 255, 0.8);
}

.navbar-custom .navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    padding: 8px 12px;
}

.navbar-custom .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(123, 108, 255, 0.3);
}

.navbar-custom .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23c7d2fe' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.btn-brand {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #ffffff;
    border: none;
    padding: 11px 26px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.98rem;
    box-shadow: 0 8px 28px rgba(123, 108, 255, 0.35);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-brand:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(123, 108, 255, 0.5);
    color: #ffffff;
}

.btn-brand:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

.btn-outline-brand {
    border: 1px solid rgba(123, 108, 255, 0.5);
    color: var(--accent);
    background: transparent;
    padding: 10px 26px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
}

.btn-outline-brand:hover {
    background: rgba(123, 108, 255, 0.12);
    border-color: var(--primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.page-banner {
    position: relative;
    padding: 130px 0 90px;
    background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
}

.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 15, 26, 0.78) 0%, rgba(11, 15, 26, 0.9) 70%, var(--bg) 100%);
}

.page-banner .container {
    position: relative;
    z-index: 2;
}

.page-banner h1 {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    max-width: 860px;
}

.banner-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    border-radius: 40px;
    background: rgba(123, 108, 255, 0.18);
    border: 1px solid rgba(123, 108, 255, 0.4);
    color: #cdd3ff;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin-bottom: 18px;
    text-transform: uppercase;
    box-shadow: 0 0 20px rgba(123, 108, 255, 0.15);
}

.banner-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: var(--text-muted);
    font-size: 0.92rem;
    margin-top: 6px;
}

.banner-meta span {
    display: inline-flex;
    align-items: center;
}

.breadcrumb {
    margin-bottom: 22px;
    background: rgba(11, 15, 26, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 40px;
    padding: 8px 18px;
    display: inline-flex;
}

.breadcrumb-item a {
    color: var(--text-muted);
    font-weight: 500;
}

.breadcrumb-item a:hover {
    color: var(--accent);
}

.breadcrumb-item.active {
    color: #ffffff;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

.article-shell {
    padding: 70px 0 30px;
    background: var(--bg);
}

.article-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 38px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.article-cover {
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 34px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
}

.article-cover img {
    aspect-ratio: 16 / 7;
    object-fit: cover;
    display: block;
    width: 100%;
}

.article-body {
    color: #c7d0df;
    font-size: 1.06rem;
}

.article-body p {
    margin-bottom: 1.6rem;
    line-height: 1.95;
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4 {
    margin-top: 2.2rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.article-body h2 {
    font-size: 1.6rem;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    border-radius: 2px;
}

.article-body h3 {
    font-size: 1.3rem;
}

.article-body img {
    border-radius: 18px;
    margin: 1.5rem 0;
    box-shadow: var(--shadow);
}

.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(45, 224, 255, 0.06);
    padding: 16px 24px;
    border-radius: 0 16px 16px 0;
    margin: 1.8rem 0;
    color: #b8c4d8;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.6rem;
    padding-left: 1.4rem;
}

.article-body li {
    margin-bottom: 0.6rem;
}

.article-body a {
    border-bottom: 1px dashed rgba(45, 224, 255, 0.5);
}

.article-body code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.9em;
    color: var(--accent);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 36px;
    padding-top: 26px;
    border-top: 1px solid var(--border);
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: rgba(123, 108, 255, 0.1);
    border: 1px solid rgba(123, 108, 255, 0.25);
    border-radius: 40px;
    color: #c3c8ff;
    font-size: 0.88rem;
    font-weight: 600;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 26px;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.share-btn {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--border);
    color: var(--text-muted);
    transition: var(--transition);
    font-size: 0.95rem;
}

.share-btn:hover {
    background: var(--primary);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(123, 108, 255, 0.4);
}

.article-sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.side-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 28px;
    transition: var(--transition);
}

.side-card:hover {
    border-color: rgba(123, 108, 255, 0.35);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.side-title {
    font-size: 1.1rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    color: #ffffff;
}

.side-title i {
    color: var(--accent);
}

.side-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 18px;
}

.side-tips {
    list-style: none;
    padding: 0;
    margin: 0;
}

.side-tips li {
    color: #c4ccdd;
    font-size: 0.95rem;
    padding: 8px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.07);
}

.side-tips li:last-child {
    border-bottom: none;
}

.side-tips i {
    color: var(--accent);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud a {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 30px;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition);
}

.tag-cloud a:hover {
    background: rgba(123, 108, 255, 0.2);
    border-color: rgba(123, 108, 255, 0.5);
    color: #ffffff;
    transform: translateY(-2px);
}

.not-found-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 80px 40px;
    box-shadow: var(--shadow);
}

.not-found-card h2 {
    margin-bottom: 12px;
}

.not-found-card p {
    color: var(--text-muted);
}

.related-section {
    padding: 90px 0;
    background: var(--bg-soft);
    position: relative;
    overflow: hidden;
}

.related-section::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -120px;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, rgba(123, 108, 255, 0.15), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-head {
    margin-bottom: 52px;
    position: relative;
    z-index: 2;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-head h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.section-head p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto;
}

.related-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    overflow: hidden;
    height: 100%;
    transition: var(--transition);
}

.related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(123, 108, 255, 0.35);
}

.card-img-wrap {
    aspect-ratio: 3 / 2;
    overflow: hidden;
    position: relative;
}

.card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.related-card:hover .card-img-wrap img {
    transform: scale(1.08);
}

.card-img-wrap::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, transparent 55%, rgba(11, 15, 26, 0.85));
}

.card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    background: rgba(11, 15, 26, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.related-body {
    padding: 26px;
}

.related-body h3 {
    font-size: 1.18rem;
    margin: 0 0 10px;
}

.related-body p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0 0 18px;
}

.related-meta {
    display: flex;
    gap: 14px;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 14px;
}

.related-meta i {
    color: var(--primary);
}

.related-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.92rem;
}

.related-link:hover {
    color: #ffffff;
    gap: 12px;
}

.cta-section {
    padding: 90px 0;
    background: var(--bg);
}

.cta-box {
    background:
        linear-gradient(135deg, rgba(123, 108, 255, 0.22), rgba(45, 224, 255, 0.1)),
        url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    border-radius: 32px;
    padding: 80px 60px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.12);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(11, 15, 26, 0.55);
}

.cta-box h2,
.cta-box p,
.cta-box .btn {
    position: relative;
    z-index: 2;
}

.cta-box h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 14px;
}

.cta-box p {
    color: #cbd4e4;
    max-width: 640px;
    margin: 0 auto 34px;
    font-size: 1.08rem;
}

.btn-light {
    background: #ffffff;
    color: #0b0f1a;
    border: none;
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 700;
    transition: var(--transition);
}

.btn-light:hover {
    background: var(--accent);
    color: #0b0f1a;
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(45, 224, 255, 0.35);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.6);
    color: #ffffff;
    padding: 13px 34px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #ffffff;
    color: #ffffff;
    transform: translateY(-3px);
}

.site-footer {
    background: #080b14;
    border-top: 1px solid var(--border);
    padding: 70px 0 0;
    position: relative;
}

.footer-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-brand .brand-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    color: #ffffff;
    font-size: 16px;
    box-shadow: 0 6px 20px rgba(123, 108, 255, 0.4);
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 340px;
}

.footer-title {
    font-size: 1rem;
    margin-bottom: 20px;
    color: #ffffff;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 32px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.94rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-links a i {
    font-size: 0.7rem;
    color: var(--primary);
}

.footer-bottom {
    margin-top: 48px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
}

@media (max-width: 991.98px) {
    .navbar-custom {
        padding: 10px 0;
    }

    .navbar-custom .navbar-collapse {
        background: rgba(11, 15, 26, 0.98);
        border: 1px solid var(--border);
        border-radius: 18px;
        margin-top: 14px;
        padding: 20px;
        box-shadow: var(--shadow);
    }

    .navbar-custom .navbar-nav .nav-link {
        padding: 12px 16px;
    }

    .navbar-custom .btn-brand.ms-lg-3 {
        margin: 10px 0 0;
    }

    .page-banner {
        padding: 100px 0 70px;
    }

    .article-sidebar {
        position: static;
    }

    .cta-box {
        padding: 50px 28px;
    }
}

@media (max-width: 767.98px) {
    .article-card {
        padding: 24px 20px;
        border-radius: 20px;
    }

    .page-banner h1 {
        font-size: 1.8rem;
    }

    .cta-box {
        padding: 44px 22px;
    }

    .cta-box .btn {
        display: block;
        width: 100%;
    }

    .cta-box .btn + .btn {
        margin-top: 14px;
    }
}

@media (max-width: 575.98px) {
    .banner-meta {
        flex-direction: column;
        gap: 8px;
    }

    .related-body {
        padding: 20px;
    }
}